Résultats de la recherche
-
Analysis of krill fishery behaviour in the southwest Atlantic: potential signals for moving fishing activities amongst SSMUs
leaving a SSMU, as well as its timing of the day, diurnal pattern of CPUE and fishing depth. Vessels tend ... than a day to explore the fishing grounds from multiple options for the start of the fishing season ... . Continuous operations in a single SSMU are longer later in the fishing season, especially for winter ... conditions etc. Skippers tend to allow a day to decide before leaving a SSMU after over days of continuous ...
Meeting Document : WG-EMM-07/27 : Auteur(s): S. Kawaguchi, A. Constable and S. Nicol (Australia)
-
An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
Abstract: A new method for estimating illegal fishing effort is put forward. The results from ... . This is the prevention/detection problem, in which the greater the number of detections for a given ... leads to a negative correlation between the amount of fishing and the estimated amount of fishing for a ... that have a degree of legitimacy. However, the range of actual fishing (in the simulation datasets) for ...
Meeting Document : WG-FSA-05/P7 : Auteur(s): Ball, I.
-
Beach debris survey, Signy Island, South Orkney Islands, 2003/04
and size categories. A total of 21 items weighing 11.59kg were collected. The number of items found ... recovered (a decrease of 61% and 57.56% since 2002/03 respectively). There was a decrease in the number of ... reversing the rise in packaging bands experienced over the previous two seasons and marking a return to what ... has otherwise proved a declining trend since 1993/94. Despite this seasons decrease in these packaging ...
Meeting Document : SC-CAMLR-XXIII/BG/15 : Auteur(s): Delegation of the United Kingdom
-
An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
Abstract: A new method for estimating illegal fishing effort is put forward. The results from ... is the prevention/detection problem, in which the greater the number of detections for a given level ... a negative correlation between the amount of fishing and the estimated amount of fishing, for a ... results that have a degree of legitimacy. However, the range of actual fishing (in the simulation data ...
Meeting Document : WG-FSA-04/63 : Auteur(s): I. Ball (Australia)
-
Beach debris survey – Signy Island, South Orkney Islands 2002
categories. A total of 39 items weighing 25.47kg were collected. The number of items found was the largest ... packaging bands (eight) from the total recorded the previous season (1), a change in what has otherwise been ... a declining trend since 1993/94. Plastic waste was predominant, as in previous seasons, making up71 ... of waste recorded at Signy Island has shown a reverse in what has otherwise been a declining trend ...
Meeting Document : SC-CAMLR-XXI/BG/05 : Auteur(s): Delegation of the United Kingdom
-
Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... unit effort of the commercial fishery, tagging survey, sample size frequencies… CASAL is a simple ... population-modeling tool, applied to a single area and based on sex combination. The spatial complexity of ... than 1,500m. Commercial catches are integrated in the model by CCAMLR season. A weighted combination of ...
Meeting Document : WG-FSA-11/28 : Auteur(s): A. Relot-Stirnemann (France)
-
Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management
/or climate change. (Mar. Ecol. Prog. Ser., 399 (2010): 243–252) Author(s): K. Reid, J.L. Watkins ... Abstract: The South Georgia region supports a large biomass of krill that is subject to high ... interannual variability. The apparent lack of a locally self-maintaining krill population at South Georgia ... with krill population size structure over the same period from predator diet data, were used with a ...
Meeting Document : WG-EMM-10/P08 : Auteur(s): K. Reid, J.L. Watkins, E.J. Murphy, P.N. Trathan, S. Fielding and P. Enderlein
-
Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots
Abstract: Antarctic krill is a key species in the Southern Ocean food web and is also the target ... of the greatest fishery in Antarctic waters. Management of the fishery is based on a precautionary ... ). Here we present a novel analysis to identified fishing grounds, using statistical analysis of hotspots ... , in this case, fishing hotspots (FH), combined with a temporal analysis to assess persistence of these ...
Meeting Document : WG-EMM-16/52 : Auteur(s): F. Santa Cruz, B. Ernst and J.A. Arata
-
Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and tools for dynamic management and decision support
Abstract: Adaptive feedback management is a core component of the ecosystem based management ... Projected Dynamics (MAPPPD) is a web-based, open access, decision support tool that would greatly assist ... ) for the region south of 60° S. A Bayesian population model integrates the available data to develop ... multiple sites to obtain abundance estimates over any user-defined area of interest. A front-end web ...
Meeting Document : WG-EMM-16/P08 : Auteur(s): G.R.W. Humphries, C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M. Schrimpf and H.J. Lynch
-
USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3
Abstract: One of the main issues in the management of the krill fishery is finding a spatial ... . This requires a framework of spatial areas over which catches can be subdivided. WG-EMM has devised an ... structure of the ecosystem. This framework is hierarchical. It recognises a distinction between coastal ... oceanic SSMUs. A more detailed application of knowledge about ecological structure is likely to allow more ...
Meeting Document : WG-EMM-11/18 : Auteur(s): S.L. Hill and J. Silk (UK)